Gentoo Archives: gentoo-user

From: Hilco Wijbenga <hilco.wijbenga@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] CONFIG_IOMMU_SUPPORT???
Date: Wed, 24 Aug 2011 04:20:09
Message-Id: CAE1pOi3BOOWwoEe=oGC0Feyi9fcFS7j7Lz2m6zuXCKy7i=DZ6w@mail.gmail.com
In Reply to: [gentoo-user] CONFIG_IOMMU_SUPPORT??? by Mark Knecht
1 On 23 August 2011 20:38, Mark Knecht <markknecht@×××××.com> wrote:
2 > Hi all,
3 >   Can someone point me toward somehow enabling CONFIG_IOMMU_SUPPORT?
4 > It is apparently a kernel config option no required by
5 > virtualbox-drivers but I'm not finding it in the 3.0.3 kernel. I
6 > suspect there's something else I need to enable before this option
7 > becomes available? Unfortunately I haven't been able to Google what I
8 > need to do to find it.
9 >
10 > Thanks,
11 > Mark
12 >
13 > * Messages for package app-emulation/virtualbox-modules-4.1.2:
14 >
15 >  *   CONFIG_IOMMU_SUPPORT:       is not set when it should be.
16 >  * Please check to make sure these options are set correctly.
17 >  * Failure to do so may cause unexpected problems.
18 > <SNIP>
19 >
20 > k2 linux # cat .config | grep IOMMU
21 > CONFIG_GART_IOMMU=y
22 > # CONFIG_CALGARY_IOMMU is not set
23 > CONFIG_AMD_IOMMU=y
24 > # CONFIG_AMD_IOMMU_STATS is not set
25 > CONFIG_IOMMU_HELPER=y
26 > CONFIG_IOMMU_API=y
27 > # CONFIG_IOMMU_DEBUG is not set
28 > # CONFIG_IOMMU_STRESS is not set
29 > k2 linux #
30
31 I noticed the same. There does not appear to be any such option but
32 luckily its absence does not appear to affect running VB at all.

Replies

Subject Author
Re: [gentoo-user] CONFIG_IOMMU_SUPPORT??? Gregory Woodbury <redwolfe@×××××.com>
Re: [gentoo-user] CONFIG_IOMMU_SUPPORT??? Mark Knecht <markknecht@×××××.com>